Bought it for only $3 during a steam sale, and it is crazy addictive. My favorite so far has to be the Mantis Layout B, since it comes stock with a teleporter that lets you beam over 4 at a time. It can be frustrating to fly during the early game since it has very few other items, but if you get ahold of a decent sized crew and a reliable way to destroy the enemy's med bay, you can simply overwhelm most crews with your own boarding parties and collect the spoils.